Announcement PDF Monthly Report April 2026 Rivco Australia Limited (ASX:RIV) 1 SHARES ON ISSUE: 159,064,166 MARKET CAP: $226 million Net Asset Value (Pre-tax) $1.75 per share (unaudited) Net Asset Value (Post-tax) $1.59 per share (unaudited) Closing Share Price $1.42 per share Southern Basin Dam Storages – 30 April 2026 Dartmouth Hume Eildon Blowering Burrinjuck Menindee Average* Current Month 65% 22% 41% 23% 38% 33% 40% Previous Month 65% 27% 43% 20% 38% 30% 41% Previous Year 77% 21% 61% 33% 43% 34% 49% OPTIONS ON ISSUE: 38,165,498 * Weighted Average Key Highlights • Pre-tax NAV decreased by 5 cents per share during the month, primarily reflecting the 3.72 cps fully franked dividend paid on 30 April 2026. • Executed a new five-year lease with Kyndalyn Park Pty Ltd, a wholly owned subsidiary of Select Harvests Limited, to commence on 1 July 2026. • From 1 July 2026, 82% of the portfolio is leased. These lease contracts are expected to generate $10.6 million of lease revenue in the 2026/27 water year. • Ed Peter and Dirk Wiedmann both retired from the Board during the month. The Company would like to acknowledge their longstanding contribution and commitment to Rivco over the past 10 years. • The Company’s listed bonus options (ASX:RIVOA), which were issued to all shareholders in 2023, expired on 10 May 2026. Company Snapshot This announcement has been authorised for release by the Chairman of Rivco Australia Limited (“Rivco” or “the Company”). This document contains summary informationabout Rivco, its subsidiaries and their respective activities current as at the date of this document unless otherwise stated. This document does not contain all the informationabout Rivco's assets and liabilities, financial positionand performance, profits and losses and prospects and does not purport to be complete or comprise all information whichis relevant to an investment decision or that would be required in a prospectus or product disclosure statement prepared in accordance with the requirements of the Corporations Act 2001 (Cth). This document should be read in conjunctionwith Rivco's other periodic and continuous disclosure announcements lodged with ASX which are available at www.asx.com.au. The release, publication or distribution of this document (includingan electronic copy) outside of Australia may be restricted by law. This document may contain forward looking statements, includingstatements regarding Rivco's intentions, beliefs or current expectations about its business and operations, and market conditions. Forward looking statements are provided as a general guide only and should not be relied upon as an indication orguarantee of future performance. This document does not constitute investment, tax, legal or any other form of advice or recommendation andwas prepared without regard to the specific objectives, financial situation or needsof any particular person. Before making an investment decision, you should make your own enquiries and investigations and obtain your own professional advice. Lachlan Campbell Executive Manager - Corporate lachlan.campbell@rivco.com.au +61 410 107 158 Lachlan Beech Executive Manager – Portfolio & Trading lachlan.beech@rivco.com.au +61 414 742 197 Contact Details $306m TOTAL WATER ASSETS 60.8 GL WATER ENTITLEMENTS 52% LEASED % OF PORTFOLIO 3.0 yrs WEIGHTED AVERAGE LEASE EXPIRY (WALE) 7.5% DIVIDEND YIELD (GROSS)1 5.2% DIVIDEND YIELD (CASH)2 1. Calculated as the cash dividends paid over the previous12 months,grossed up for franking credits, divided by the EOM share price. 2. Calculated as the cash dividends paid over the previous12 months,divided by the EOM share price (relevantfor non-residentinvestors). Awarded Allocation Percentages – 1 May 2026 Goulburn VIC Murray NSW Murray Murrumbidgee SA Murray High Security 81% 100% 97% 95% 100% General Security* 0% 0% 20% 32% N/A *GeneralSecurityentitlements in NSW share similar characteristicsto Low Reliabilityentitlementsin Victoria.